set curr_wave [current_wave_config] if { [string length $curr_wave] == 0 } { if { [llength [get_objects]] > 0} { add_wave / set_property needs_save false [current_wave_config] } else { send_msg_id Add_Wave-1 WARNING "No top level signals found. Simulator will start without a wave window. If you want to open a wave window go to 'File->New Waveform Configuration' or type 'create_wave_config' in the TCL console." } } run 1000ns